1 新建一個 umg c++類MyUserWidget繼承與userWidget

2 建立藍圖類BP_MyUserWidget繼承於MyUserWidget

3 在 BP_MyUserWidget 下建立文字塊，取名為Name

4 class setting下設定父類為MyUserWidget

5 開啟vs編寫c++程式碼
MyUserWidget.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "Blueprint/UserWidget.h"
#include "Public/Components/TextBlock.h"
#include "MyUserWidget.generated.h"

/**
 * 
 */
UCLASS()
class TEST_API UMyUserWidget : public UUserWidget
{
	GENERATED_BODY()

public:
	virtual bool Initialize() override;

public:
	//反射繫結，通過繫結umg組建名獲得組建物件
	UPROPERTY(Meta = (BindWidget))
	UTextBlock* Name;
};
 

MyUserWidget.cpp

// Fill out your copyright notice in the Description page of Project Settings.

#include "MyUserWidget.h"


bool UMyUserWidget::Initialize()
{
	if (!Super::Initialize())
	{
		return false;
	}
	//獲得文字塊組建改變文字
	Name = Cast<UTextBlock>(GetWidgetFromName(FName(TEXT("Name"))));
	//FString轉成FText
	FText a = FText::FromString(TEXT("abc"));
	//改變文字值
	Name->SetText(a);
	
	return true;
}